近日,意大利里雅斯特大学的Michele Cirafici及其研究团队取得一项新进展。经过不懈努力,他们对涨落定理、量子通道和引力代数进行研究。相关研究成果已于2024年11月14日在国际知名学术期刊《高能物理杂志》上发表。
本文研究了德西特空间内引力代数中的非平衡涨落。研究的一个关键方面是量子测量理论,它使研究人员能够通过两点测量方案来探究可观测量的动力学涨落。利用这一形式,研究人员建立了特定的涨落定理。
此外,研究人员还通过测量理论与量子信道之间的关系,证明了量子信道由子因子表示。他们也对利用琼斯的子因子理论来实现量子信道进行了讨论。
附:英文原文
Title: Fluctuation theorems, quantum channels and gravitational algebras
Author: Cirafici, Michele
Issue&Volume: 2024-11-14
Abstract: In this note we study nonequilibrium fluctuations in gravitational algebras within de Sitter space. An essential aspect of this study is quantum measurement theory, which allows us to access the dynamical fluctuations of observables via a two-point measurement scheme. Using this formalism, we establish specific fluctuation theorems. Additionally, we demonstrate that quantum channels are represented by subfactors, using the relationship between measurement theory and quantum channels. We also comment on implementing a quantum channel using Jones’ theory of subfactors.
DOI: 10.1007/JHEP11(2024)089
Source: https://link.springer.com/article/10.1007/JHEP11(2024)089